Pith Number

pith:U4ZBMBI2

pith:2013:U4ZBMBI2SN4K3FGTHDR4HWMENV

not attested not anchored not stored refs pending

Nonlinear unmixing of hyperspectral images: models and algorithms

Alfred O. Hero, C\'edric Richard, Jean-Yves Tourneret, Jos\'e C. M. Bermudez, Nicolas Dobigeon, Stephen McLaughlin

arxiv:1304.1875 v2 · 2013-04-06 · physics.data-an · stat.AP · stat.ME · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4ZBMBI2SN4K3FGTHDR4HWMENV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:50:42.178038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a73216051a9378ad94d338e3c3d9846d52b6bbbee5e45b01fa39bcf815c606cf

Aliases

arxiv: 1304.1875 · arxiv_version: 1304.1875v2 · doi: 10.48550/arxiv.1304.1875 · pith_short_12: U4ZBMBI2SN4K · pith_short_16: U4ZBMBI2SN4K3FGT · pith_short_8: U4ZBMBI2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/U4ZBMBI2SN4K3FGTHDR4HWMENV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a73216051a9378ad94d338e3c3d9846d52b6bbbee5e45b01fa39bcf815c606cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56b7d8258056f029263db06faa51efe7fb5855cf525e4e1d2160813db0ddfb59",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.ME",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2013-04-06T10:21:56Z",
    "title_canon_sha256": "ac0590fa279d9290f1574ae72d6c241e5bcfe37a82f643769b9789dd26a7d1ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1875",
    "kind": "arxiv",
    "version": 2
  }
}